Lost Ark is probably one of the best free-to-play MMO games by Smilegate. Undeniably, the game is very well optimized but some rare glitches and bugs can be found here and there such as the selected region being closed error or players stuck in Rielvarr Ruins and Haiger’s Manor areas. In addition to these issues, many players are now reporting that they are receiving an “Untrusted system file” error and they cannot start the game. According to multiple reports, players are running into a problem where the game will not launch after the Easy Anti-Cheat screen and they end up with an error message – “Untrusted system file … physxupdateloader64.dll”. If you have the same issue and are not able to start the game, here is how you can fix it.
Fixing Lost Ark Game Not Starting – Untrusted System File Error
It is still unknown why many players are receiving the “untrusted system file” error message while launching Lost Ark. Thankfully, there are some temporary workarounds you can try to fix this issue.
It seems the developers are still working on the matter but some users on Reddit have shared a temporary solution to get rid of the “Untrusted system file” error in Lost Ark.
The solution is to make sure you have installed the latest GPU drivers. You can check your latest drivers through your GPU software. You can also download the latest drivers from the below links:
– Nvidia Drivers Download Link
Many players have fixed this issue after updating their GPU drivers. After updating, do not forget to restart your PC once.
If the issue persists even after updating GPU drivers, then it is recommended to remove the problematic files from your PC. You can find this file in your system and the path is “C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common”. Follow this path and delete that file and then try to launch the game and the issue should be fixed.
That’s all for this guide on how to fix the Lost Ark game not starting – Untrusted system file error.
Also check – How to fix Lost Ark can’t summon mount bug.
